Stamping apparatus for frangible articles



J1me 1953 J. s. CAMPBELL ET AL STAMPING APPARATUS FOR FRANGIBLE ARTICLES 2 Sheets-Sheet 1 Filed July 30, 1948 INVENTORS J-S-CAMPBELL W. BROWN G- A. DOUGLAS June 9, 1953 J. s. CAMPBELL ET AL 2,641,179

STAMPING APPARATUS FOR FRANGIBLE ARTICLES Filed July 30, 1948 2 Sheets-Sheet 2 INYENTORS u. s. CAMPBELL W- BROWN (a-A. DOUGLASS -37" QMWW :4,

Patented June 9, 1953 STAMPING APPARATUS FOR FRANGIBLE ARTICLE S The. obj est 0.f: ..this-: nvention is:- totprovidee a pin anparatus; dap ed. to stamp. it. stream ofizfrengible art cles: as ach article; is. brou ht to artemp rary' halt beneath-the;apparatus;

Thez pparatus; ofi our invention has, been e t- AA peoially -designedfor use-in;conjunetion with an egg gradin machine-,- sueh as! that disclosed; in our Unitedastatesi Patent, No. 2,381,035 inwhich' the eEEarQlls-floWIi.aninclined plane onto a cup, and is carried:awayqtherefromv by. means of; par-w alleli barsqwhieh actlinconjunction withiah'group, of scales to dispose 'oftheegg in: onerof a number I orfxo'qompartments inaccordance with the-Weight ofli-ztheesg'.

We; envis ge;that-the;egg stamper;1010111; inventiozrz will ,be; employedin; con-junction with-an flee: rader; ofi h e ature; the stamp ns kin BR2061945317116: egg;liesws a ionarv in the cup b itxmi htceq ellv ell, e, mployed with any; oth r; dey-ieesowlonetes theieonditions areai lfidt r frangible: articlesare delivered-to;- a-, point beneath-1- ther. apnaratushtempprarily halted atthis point, andthencarriedawam Itn iS"8;Il object of this inventiom to provide a, stampingnapparatus which is: capable 0-fostamping-1:-egg s;:a-nd= similar; frangible, articles. without dan r of breakin hei rtieles tamped.

It: is; aiurtherr obje t of. the inv nti n to prom vide a, stampineiepparatus which; s amps-ta; clear impression:- uo nz fra ible rticles of; difier n sizesendgdifi ringshaoes:;

instill, tor-then: object. of? he inv ntion: nto: provide-a.stamping appare swhiehfls:01?at Amt- Pleat-economical; construc ion; lending v ts li; t0;

lewwost; production on:- a lar e; s ale:-

With: these and otherbjects view, ouxtr avention: general y: compr ses a; tandard ada ed fer'rigi ly mountineupon aniegg g zaderor others, device whichvbnin sz a stream of;v f angible are ticles toga: temporary helm at sternper .arin ive otaily mounteda upon said: standard; so; as; to be swi-ngable inw theztvertieal planej, a stamp at the free end of said stamper; an inke arm swing -e ably mounted on said standardandhaving its; swingable movement in: an: arcuate path transversely: of: the swingablm movement of Saidstamper; arm, an; inking tray secured: to; s inker arm andv adapted. to; be; engageda by markin m ens in am inkingposition, "and" drivemgmeans adapted to pivot said 'staimper armein: so,

and out of stamping position and to acausersaid; inking tray to engage said 'marking:=.meansw semi-stamping arm is-out nit-stamping position In a order that. the present? invention; may; be;

fully understood and readiiy eanried intqrpm e. to;

J A homer n 1eve nithestempr ins;- de eei f our; nve ion mou ed pon: srsrad r ame;

Figure 2 is, a, side: elevatiqnal view of the omp nf; e ce how n he. dev e n ll i es; in; e nonr ain.pingposit on-v n ntdotted ine. me;stamp neaposi ion;

Figure.3 :isamenlarged scalevview of a weight, usedin, conjunction with the device of Figure 2 nd ure 4 is a perspective view o f the drive; mechanism usedto impart the I desired mgfiionto he stampinga d. n in arms of he appar tus"; of our invention.

Throu o the: d w ngs, ik e r ce merals re o imi atparts Referring in. detail to ;.the drawin s, referenee. numeral I0 indicates the frame of typieai egg ra n m chine havinsi o s tudin llyx nd"- ingi bars I l, mounte d on one of these bars l;l is a; drive motor; l2,,, which is, used to; drive both the egg-grading, means, and the, Stamping means which constitutes the, present invention and is g represented by; the symbol: A. The stamping means A; islhounted .ubonfl fra ne l0, and i connected to; the drive motor I 2 by a, conventional-- speed reduct on riveB nd,v a. suitab e. r g: nhe zcu D v g linkage. Cv il e ore f x described in, ausuhsequent portion of; this disc osure,

Stamping; m ns; A,, si t een igu QIQHIE BS -nstende ii; r idl mounted? new frame l0, aostamper arm l l pivotelly mounted saidis enderd L 9 to be w n eble n h r cal plane;- fipSlfiEVIGrlikQ bearing l5 rigidly mountedupon and rd, 3. ransv rsely of the longitudinal axis. of theslatter and a shaft" (not; wn); r etebl ou e thin sa dheer n his: h ftpref reb has an; enlar ed; ea '5 whereby;a,s1eeve Hm, adapted. to mount inker arm. I1, isla tee e rb weldin r br zin -J e me hod: of? n mi l i fm ,.v nker, m. T ll; b scri ed a e er rm l1 rries, n k r tray I8. An actuatin elmkliis atteohed to the r e-end-oi hesha t-mountedin be r ng I5; .e. er. 5 einetdesi nedfl to c use nt ra o mov. hro gh aner uete e hat sht a gles the; movementr he Stamp r arm" 1 Stazrnper arm, 14. is made up Of EWQ parts Hm end; Mb, which are independently pivota-Hy mounted; pon. andar 1 b u bolt means as indioated athzu A bar 2I is attached; to the under surfaeeof, part 1 4a and extends rearwardly ofigart [4a, sore-s to prevent independent rotation of part I4b downwardly past the longitudinal axis of part Ma. No corresponding check is provided against independent rotation of part |4b upwardly about nut and bolt means 29. A tension spring 22, attached to the upper surface of part I41) and to a pin 22a attached to a block 22b, which in turn is rigidly attached to a tensioning rod 23, whereby part |4b is normally urged upwardly. Spring tensioning rod 23 is threaded and is adjustably secured to the upper surface of standard I3, by means of a washer 24 and a knurled nut 25 which is threaded so as to co-operate with the threads of the rod 23. By turning nut 25, the length which rod 23 projects below the upper surface of standard I3 may be varied, and since spring 22 is secured at one end to pin 22a, and at the other end to part I 41), turning of nut 25 varies the tension in spring 22.

Part I4a. of stamper arm I4 is provided at its free extremity with a rubber stamp die 26 held bya sponge rubber cushion 21, the latter being secured to part M11 in any suitable manner. A number of different weights are provided for use in conjunction with the apparatus. One of these weights, as indicated in the drawings by numeral 29, is mounted so as to co-operate with arm I4a. The weight used should not be heavier than that required to stamp a clear impression. Weight 28 is carried by a rod 29, which is pivotally mounted upon part I4a, as at 39. The path followed by rod 29, as part I la is reciprocated, is controlled by means of a tubular guide member 3|, which slidably encloses rod 29. This method of mounting prevents the weight from bouncing and blurred impressions are avoided. Guide member 3| is pivotally mounted as at 32 upon a stud 33 which extends from sleeve-like bearing I5.

Actuating arm I9 is connected to the driving linkage C by means of connecting rod 34, and part I4b is connected to the driving linkage C by means of connecting rod 35. Drive motor |2 through speed reduction drive B drives a cam 36 at a reduced speed relative to that of the motor. An arm 31 is pivotally mounted as at 38, upon a bracket 39 which is rigidly mounted upon one of the members II. Arm 31 carries a roller 49 adapted to ride upon cam 36, whereby bar 31 is given a vertical reciprocating motion as cam 36 revolves. A chain 4| depends from the free end of bar 31. A tubular bearing 42 is mounted transversely of two members II which are in the same horizontal plane. An assembly axle 43 is rotatably mounted in bearing 42. An arm 44, carrying a weight 45 at its free end,is rigidly mounted upon rotatable axle 43. Chain 4| is connected to arm 44, whereby vertical re ciprocation of arm 31 causes vertical reciprocation of arm 44. Secured to the end of axle 43 is an actuating arm 46, which is also given a reciprocatory motion when arm 44 is reciprocated, since arm 44 is rigidly mounted upon the axle 43. Connecting rod is pivotally attached to the end of actuating arm 46.

Therefore, as the roller rides on the cam 36, actuating arm 46' is given a reciprocatory motion, which, through connecting rod 35, causes part M?) of stamper arm I4 to pivot about nut and bolt means 20; whereby part I4a, by virtue of Weight 28 and bar 2|, is caused to pivot about said nut and bolt means, and stamp 26 thereby travels back and forth in an arcuate path in and out of the stamping position.

Axle 43 is further provided with a sleeve 41,

rotatably mounted thereon. An arm 48 extends from sleeve 41, carrying a Weight 49 at its free end. A second arm 50 extends from sleeve 41. A rod 5| is pivotally connected to the free end of arm 50, and rod 5| passes through a sleeve member 52 which is pivotally mounted in an eccentric position upon cam 36. Rod 5| slides freely in sleeve 52, but the rod is provided with a helical spring mounted upon the rod and positioned thereon by means of a stop 54. Sleeve 41 is provided with a third arm 55 which extends therefrom and is pivotally connected at its end to connecting rod 34, which in turn is connected to actuating arm I9, as previously mentioned.

As the cam 33 rotates, sleeve 52 is carried around with the cam and slides back and forth upon rod 5|.

During this course of travel, sleeve 52 is caused to bear against spring 53, and spring 53 is compressed against stop 54, forcing rod 5| rearwardly, and arm 55 is thus rotated in an anticlockwise direction as viewed in Figure 4. As the cam rotates further, the pressure is removed from spring 53, and arm 55 is caused to rotate in a clockwise direction by means of weight 49. This movement of arm 55 is translated via connecting rod 34, actuating arm l9, shaft I6, and inker arm I1, into a movement on the part of inker tray I8 in an arcuate path transverse of the swingable movement of stamper arm I4. A stop 56 attached to standard I3 is provided to limit the movement of inker arm I1.

It will be seen from the foregoing description that as roller 40 rides on cam 36, and as sleeve 52 is caused to move back and forth on rod 5| by the rotation of the cam, movements are imparted to stamper arm I4 and inker arm I1. These movements are so related that when stamp 26 is in its uppermost position, inker tray I8 is brought therebeneath and ink is applied to stamp 26; and as the inker arm moves outwardly transversely of the swingable movement of stamper arm I4, then stamper arm I4 moves downwardly and stamper 26 stamps an inked marking upon a frangible article brought to a temporary halt beneath the apparatus; then as stamper arm I4 moves upwardly after performing its allocated task, inker arm I1 moves inwardly so as to provide stamp 26 with fresh ink from inker tray I8.

I preferably attach inker arm I1 to the enlarged head I6 in, such a manner that inker tray I8 may be raised or lowered. One method of accomplishing this is shown in Figure 2. The sleeve |6a is rigidly attached to the enlarged head I6, inker arm I1 is provided with a stop 51, and a helical spring 58 is concentrically mounted on arm I1, so as to rest against stop 51. Arm I1 is further provided with threading 59. Arm I1 is mounted on the apparatus by passing said arm through sleeve I6a and compressing spring 58 between sleeve I6a and stop 51. A nut 60 is then turned on the threads 59. By adjustment of nut 60, inker tray I8 may be raised or lowered.

Means are provided for stopping the movements of the stamper arm and the inker arm, without stopping of the drive motor I2. This means comprises a bar 6| rotatably mounted on axle 43, said bar carrying a crosspiece 62 extending laterally on each side of the bar, and an operating lever 63, pivotally attached to said bar. Axle 43 and sleeve 41 are provided with arms 64 and '65 respectively. Operating lever 63 may be pulled forwardly, bringing'crosspiece 62 to bear against arms 64 and 65, causing axle ri idly mounted tionshall be'limite'd-only 'th'e seiipe of the appended claims;

1. An apparatus for marking frangible articles suchas eggs: aii d the like 'ahd adapted to be mounted upon 'a device l which brings individual membersrof astre'ainpf' frangible articles to atempoifaiy halt thereberieatli, comprisi'ri'gj aim s ""da' ti, amper"armq ivotally'mount'd=iip'on so 'as"to"*be="swiiigable in the"'vr- I fsaid'ar'm an inker arm'siivingably'mountedmn said standard, 1 said inker arm having its swingable movement in an arm extending from said axle and rigidly an arcuate path transversely of the swingable mounted thereupon, a weight secured to said movement of said stamper arm, an inkingv tray arm, a pivotally mounted arm carrying a roller secured to said inker arm, and driving means adapted to ride upon said cam, flexible means adapted to pivot said stamping arm in and out connecting said first mentioned arm to said secof stamping position, and to swing said inker 4 ond mentioned arm, an actuating arm extending arm causing said inking tray to engage said from said axle and rigidly mounted thereupon, stamp when said stamping arm is out of stampand a connecting rod pivotally connected to said ing position, said inker arm being adjustably actuating arm linking the latter to said stamper mounted in atubular member, said tubular memarm, whereby as said roller rides on said cam, ber being secured to a shaft, said shaft being said stamper arm is pivoted in and out of stamprotatably mounted in a sleeve-like bearing, said ing position, a sleeve freely mounted on said bearing being rigidly secured to said standard, axle, an arm extending from said sleeve, a weight said shaft being connected to said driving mechat the free end of said arm, a second arm exanism by means of an actuating arm and a contending from said sleeve, a rod pivotally connectnecting rod, said stamper arm being connected ed to said second arm, a helical spring mounted to said driving means by means of a connecting on said rod, a stop adapted to position said rod, said driving means including a drive motor, spring, a sleeve member pivotally mounted in an a speed reduction drive, and a driving linkage eccentric position on said cam, said rod being connecting" said reduction drive and said conheld by said sleeve member so as to ride back necting rods. and forth in the latter as said cam rotates, said 2'- An appar u for m rkin fr n i l r icles stop so positioning said spring that the latter is such as eggs and the like and adapted to-b compressed by said sleeve member during part of mounted upon a device which b ngs individual the rotation of said cam, and a third arm extendmembers of a stream of frangible articles to a ing from said sleeve member, and a connecting temp y halt therebeneath, p ng, a rod pivotally connected to said third arm and standard, a p arm swingably mount linking the latter to said inker arm, whereby upon Said Sta da d so as to be SWingable n' when said rod rides back and forth in said sleeve vertica p a Stamp at One 6nd of Said a member, movement is imparted to said inker an inker arm swingably mounted on said standr ard, said inker arm having its swingable move- 4. An apparatus for marking frangible artiment in an areua p transversely of j cles such as eggs and the like and adapted to swingable movement of Said Stamper arm, all be mounted upon a device which brings individinkin tray secured to Sa inker and l V- ual members of a stream of frangible articles to a means adapted to pivot Said t mp n m temporary halt therebeneath, comprising, a in and out Of St p Position, and to swing standard, a stamper arm pivotally mounted upon said inker arm caus n Said inking y said standard so as to be swingable in the vertigage S Stamp When Said Stamping arm is Out cal plane, a stamp at one end of said arm, an of stamping position, said driving means includinker arm swingably mounted on said standard, ing a drive motor, a speed reduction drive desaid inker arm having its swingable movement in signed to drive a cam at reduced speed, a rigidly an arcuate path transversely of the swingable movement of said,stamper arm, an. inkingtray secured to said inker arm, and driving means adapted to pivot said stamping arm in and out of stamping position, and to swing said inker arm causing said inking tray to engage said stamp when said stamping arm is out of stamping position, said driving means including a cam, an oscillatable arm having a roller designed to ride upon said cam, a rotatable assembly shaft, a tubular bearing mounting said assembly shaft, an actuating arm extending from said assembly shaft for link connection to said stamper arm, a

weighted arm extending from said assembly shaft, collapsible means connecting said weighted arm to said oscillatable arm whereby said stamper arm is actuated by the contour of said cam, a sleeve pivotally connected to said cam, a mounting sleeve freely mounted on said assembly shaft, a weighted member extending therefrom, an arm extending therefrom, a rod pivotally connected to said arm which extends from said mounting sleeve, an adjustable stop and a spring on said rod designed to engage said sleeve on said cam, :a second arm extending from said mounting sleeve and link connecting means pivotally connected to the latter and linking said inker arm for movement of said inker tray.

5. In an apparatus for marking frangible articles such as eggs and the like and adapted to be mounted upon a device which brings individual members of a stream of frangible articles to a temporary halt therebeneath; a standard, a stamper arm swingably mounted on said standard, a stamp at one end of said arm, drive means for swinging said stamper arm away from a fran sections, each of said sections being pivotally mounted about; a common point on said standard, said stamp being mounted adjacent the free end of one of said arm sections, said drive means operatively connecting adjacent the free end of the other one.of said arm sections, rigidifying means carried on the underside of said arm section on which said stamp is mounted designed to engage with the underside of said arm section with which said drive means connects to rigidify said arm sections as said stamp is swung away from a frangible article and to permit said sections to pivot independently of each other as said stamp swings towards a frangible article, said means for swinging said stamper arm into contact with a. frangible article acting upon said arm section that carries said stamp.

JOHN STEWART CAMPBELL.

WM. BROWN.

GEORGE ALEXANDER DOUGLAS.

References Cited in the file of this patent UNITED STATES PATENTS 

